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CVE PROGRAM SOURCE RECORD8.6 High

CVE-2026-18830

Insufficient input validation in Amazon Bedrock AgentCore harness InvokeHarness API

Description

Insufficient input validation in Amazon Bedrock AgentCore harness might allow an authenticated remote user to execute configured tools bypassing model invocation and security controls via crafted content blocks in conversation messages. AWS has addressed this issue. No customer action is required.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

AWS Amazon Bedrock AgentCore harness

Default version status: unaffected

  • N/Aaffected

References